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Finding the Fourth Proportional to 69,565.74, 104,349.06 and 19,645.64

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Solution

The fourth proportional to 69,565.74, 104,349.06 and 19,645.64 is: 29,468.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,565.74 : 104,349.06 = 19,645.64 : x
  2. Step 2: Convert to fraction form
    69,565.74/104,349.06 = 19,645.64/x
  3. Step 3: Cross multiply
    69,565.74x = 104,349.06 × 19,645.64
  4. Step 4: Simplify right side
    69,565.74x = 2,050,003,936.66
  5. Step 5: Solve for x
    x = 2,050,003,936.66/69,565.74
  6. Step 6: Final answer
    x = 29,468.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.